The USB debug port is nice once you get it to work. Assumes they haven't done
anything clever like hide the special port behind a hub...
Sent from my tablet, pardon any formatting problems.
> On Jun 6, 2014, at 1:24, Borislav Petkov wrote:
>
>> On Fri, Jun 06, 2014 at 10:17:26AM +0200, Peter
Yes, but now you need a custom adapter. Some have used a phono plug for the
absolute minimum 3 wires. However, no standards...
Sent from my tablet, pardon any formatting problems.
> On Jun 6, 2014, at 2:35, Peter Zijlstra wrote:
>
>> On Fri, Jun 06, 2014 at 10:24:20AM +0200, Borislav Petkov
On Fri, Jun 06, 2014 at 10:24:20AM +0200, Borislav Petkov wrote:
> Well, with all the other crap they put in modern machines, how hard it
> is to put a goddam stupid serial line out everywhere...? WTF do I need a
> goddam adaptive keyboard and other idiotic bling-bling if I can't have a
> simple se
On Fri, Jun 06, 2014 at 10:17:26AM +0200, Peter Zijlstra wrote:
> Hopefully the EFI pstore thing will work out, but I've already heard
> that can wear out very quickly and render your machine a brick :-(
And not only that - write speed is awfully low. I hear you might be ok
to record an oops or so
On Wed, May 07, 2014 at 06:40:14PM +0200, Ingo Molnar wrote:
> Agreed, that's a very good point.
>
> Also, consider the following holistic argument, what is easier to
> achieve, when looking at an oops and not seeing the bug:
>
> - if only I had more information
> - if only I had less inform
On Wed, May 07, 2014 at 07:18:22PM +0200, Ingo Molnar wrote:
>
> Conclusion:
>
> So to me #4 looks best, and it's 16 lines instead of 31. Not as
> compact as your mockup that has 13 lines, but pretty close.
>
> (I'd also do the color tricks on #6, but that's more technically
> challenging and
* Linus Torvalds wrote:
> So to take your example, it might be something like this
>
> arch_trigger_all_cpu_backtrace+0x3c -> do_raw_spin_lock+0xb7
> -> _raw_spin_lock_irqsave+0x35 -> ? prepare_to_wait+0x18
> -> prepare_to_wait+0x18 -> ? generic_make_request+0x80
> -> ? unmap_underlying_meta
* Frederic Weisbecker wrote:
> On Sun, Apr 27, 2014 at 02:08:20PM +0200, Ingo Molnar wrote:
> >
> > * Richard Yao wrote:
> >
> > > Stack traces are generated by scanning the stack and interpeting
> > > anything that looks like it could be a pointer to something. We do
> > > not need to do t
On Sun, Apr 27, 2014 at 02:08:20PM +0200, Ingo Molnar wrote:
>
> * Richard Yao wrote:
>
> > Stack traces are generated by scanning the stack and interpeting
> > anything that looks like it could be a pointer to something. We do
> > not need to do this when we have frame pointers, but we do it
On Apr 27, 2014, at 4:08 PM, Linus Torvalds
wrote:
> On Sun, Apr 27, 2014 at 5:08 AM, Ingo Molnar wrote:
>>
>> So it's useful information for hairy bugs and it would be sad to
>> remove them.
>
> I tend to agree. I've often found the left-overs to be good clues
> about what just got called. A
On Sun, Apr 27, 2014 at 5:08 AM, Ingo Molnar wrote:
>
> So it's useful information for hairy bugs and it would be sad to
> remove them.
I tend to agree. I've often found the left-overs to be good clues
about what just got called. Although equally often it's another kind
of clue entirely: that the
I happened to write this with an email client that used Rich Text, which the
LKML rejected, so I am resending it in plaintext format. My future replies will
be made in plaintext, which is what my normal development system’s email client
does.
On Apr 27, 2014, at 8:08 AM, Ingo Molnar wrote:
>
On Sun, Apr 27, 2014 at 02:08:20PM +0200, Ingo Molnar wrote:
> For example if we used more horizontal separation in the output
> format:
>
> Call Trace:
> [<79018d24>] arch_trigger_all_cpu_backtrace+0x3c/0x64
> [<7916a34c>] do_raw_spin_lock+0xb7/0xe8
> [<792b9412>] _raw_spin_lock_irqsave+0
* Richard Yao wrote:
> Stack traces are generated by scanning the stack and interpeting
> anything that looks like it could be a pointer to something. We do
> not need to do this when we have frame pointers, but we do it
> anyway, with the distinction that we use the return pointers to mark
Stack traces are generated by scanning the stack and interpeting
anything that looks like it could be a pointer to something. We do not
need to do this when we have frame pointers, but we do it anyway, with
the distinction that we use the return pointers to mark actual frames by
the absence of a qu
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